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Finding the Fourth Proportional to 280,151.66, 386,608.48 and 152,826.34

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Solution

The fourth proportional to 280,151.66, 386,608.48 and 152,826.34 is: 210,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,151.66 : 386,608.48 = 152,826.34 : x
  2. Step 2: Convert to fraction form
    280,151.66/386,608.48 = 152,826.34/x
  3. Step 3: Cross multiply
    280,151.66x = 386,608.48 × 152,826.34
  4. Step 4: Simplify right side
    280,151.66x = 59,083,959,011.36
  5. Step 5: Solve for x
    x = 59,083,959,011.36/280,151.66
  6. Step 6: Final answer
    x = 210,899.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.